155504-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155504-67-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,5,0 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 155504-67:
(8*1)+(7*5)+(6*5)+(5*5)+(4*0)+(3*4)+(2*6)+(1*7)=129
129 % 10 = 9
So 155504-67-9 is a valid CAS Registry Number.
155504-67-9Relevant academic research and scientific papers
Loubinoux, Bernard,O'Sullivan, Anthony C.,Sinnes, Jean-Luc,Winkler, Tammo
, p. 2047 - 2054 (1994)
A simple synthesis of the title compounds 5 from diketene, and the aldehyde 3 is described.
